- Facile synthesis of phosphaamidines and phosphaamidinates using nitrilium ions as an imine synthon
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Readily accessible nitrilium triflates are convenient imine building blocks for the expedient synthesis of a novel class of 1,3-P,N ligands as demonstrated for the reaction with primary phosphanes. This procedure allows variation of all substituents. X-ray crystal structures are reported for nitrilium ions, phosphaamidines, and three phosphaamidinate complexes. The lithium phosphaamidinate is N coordinated and its reaction with [AuCl(tht)] (tht=tetrahydrothiophene) gives a unique P-bridged gold trimer, while a P,N-bidentate complex results from [{RhCl(cod)}2]. The nitrilium ion methodology allows extension of the 1,3-P,N motive to bis(imino)phosphanes, which are the neutral phosphorus analogues of the valuable β-diketiminate ligand.
- Van Dijk, Tom,Burck, Sebastian,Rong, Mark K.,Rosenthal, Amos J.,Nieger, Martin,Slootweg, J. Chris,Lammertsma, Koop
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supporting information
p. 9068 - 9071
(2014/10/15)
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- Transition metal-free one-pot synthesis of 2-substituted 3-carboxy-4-quinolone and chromone derivatives
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A novel one-pot synthesis of the 2-substituted 3-carboxy-4-quinolone/ chromone derivatives from readily available 3-oxo-3-arylpropanoates and amides/acyl chlorides is reported, without any transition metal aid. The Royal Society of Chemistry 2013.
- Lin, Jian-Ping,Long, Ya-Qiu
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p. 5313 - 5315
(2013/06/27)
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- Parallel copper catalysis: Diastereoselective synthesis of polyfunctionalized azetidin-2-imines
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An efficient and diastereoselective synthesis of highly functionalized azetidin-2-imines has been achieved through a parallel catalysis strategy, including a copper-catalyzed azide-alkyne cycloaddition, a copper-catalyzed Csp-Csp2 cr
- Xing, Yanpeng,Zhao, Hongyang,Shang, Qiongyi,Wang, Jing,Lu, Ping,Wang, Yanguang
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supporting information
p. 2668 - 2671
(2013/07/19)
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- One-pot synthesis of 2-imidazolines via the ring expansion of imidoyl chlorides with aziridines
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We herein report a simple and convenient one-pot synthesis of highly substituted 2-imidazolines in a regiocontrolled and stereospecific matter through the ring expansion reaction of an imidoyl chloride with an aziridine, analogous to the Heine reaction.
- Kuszpit, Michael R.,Wulff, William D.,Tepe, Jetze J.
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experimental part
p. 2913 - 2919
(2011/06/19)
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- Synthesis of chlorinated bicyclic C-fused tetrahydrofuro[3,2- c ]azetidin-2-ones
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Some bicyclic C-fused chlorinated tetrahydrofuro[3,2-c]azetidin-2-ones were prepared by a fairly general route involving Staudinger reaction of allylic/propargylic imidates with dichloroketene followed by highly diastereoselective CuCl/PMDETA-catalyzed 5-
- Ram, Ram N.,Kumar, Neeraj,Singh, Nem
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supporting information; experimental part
p. 7408 - 7411
(2011/02/22)
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